It's taken a few oopsie trips for us to narrow down the top 10 items you need in your adventure trailer, but we feel confident that if you don't already have these items, you'll thank us after your first trip.
Here are our picks for the top 10 items you should ALWAYS carry with you in your trailer. Although this list is selected for the powersports enthusiast in mind, a few of the items are universal to anyone looking to tackle the great outdoors.
Depending on your UTV trailer, you may need to keep security in mind.

#10 - Extra Tire/Wheel
Always, always carry a spare utv wheel and utv tire. BS happens, and UTV riders are notorious for messing around and finding out, otherwise known as FAFO. We recommend always carrying the same OD utv tire size that is on your vehicle; but if you're in a pinch, make sure your spare is no more than 2" smaller/larger than your current setup. You're risking possible additional damage if you go outside of this variance. We offer a huge assortment of UTV wheel and tire combos that are pre-mounted and ready to install.. Carrying a spare tire for your trailer is also highly recommended.
#9 - Gas
You only have to go through the unfortunate situation of running out of gas once to learn that carrying extra gas is a ridiculously cheap investment for your trailer to ensure you and your party have fun all day. Realizing you forgot to fill up your machine after unloading is a terrible feeling. Invest in a quality setup like a VP Racing can and a quick hose.
#8 - Cooler
Come on, you know you want something to drink after a long day on the trail. No matter your preference for beverages, it's a fantastic way to end a day with friends around a cooler. Don't forget to throw in some water in case you need to flush a wound or wash your hands.
#7 - Extra Parts
Depending on what kind of riding style you embrace, you may break more parts than most, so invest where you see fit. Some of the most common parts that fail are radius rods, axle, tie rod, zip ties, tire plugs, belt, tow strap(s), fluids, and air compressor. Some of the parts you may not have remembered are: extra bolts for your beadlock wheel hardware, utv valve stems, and maybe a few extra lug nuts.
#6 - Tools
We recommend bringing a comfortable amount of tools on all rides. Accidents happen, and being able to get you or a friend off the trail is a good feeling, knowing you have the tools to fit a break. There are a bunch of fantastic bolt-on, hard-sided, and soft-sided options for tool storage to keep everything in place and secure if you have an exposed trailer setup.

#5 - First Aid Kit
Having a small med kit in your UTV is always a great idea, but carrying a complete first aid kit in your trailer is another invaluable investment, especially when accidents seem to happen when you expect them least. Knowing how to use your first aid kit is just as crucial as carrying one. Make sure you take the time to learn how to use each item so that you're prepared for the worst. We recommend adding the following two items to your kit: trauma shears to easily cut clothing and a tourniquet.
#4 - Jack
We carry around a Pro Eagle floor jack in our trailer everywhere we go. We opted for the 1/2 ton so we can change out our truck, trailer, AND UTV. Depending on your budget, a smaller option is always better than having to rig something up out in the wild.

#3 - Extra Whips
Safety Whips are a straightforward investment, especially when you consider they prevent accidents on the trail, especially in the dunes/sand. Regardless of trail or park rules, we always recommend everyone run a daytime safety whip and at least one lighted whip at night to keep you and your party safe.
#2 - Camp Gear
Enjoy your post-ride cooler time with the right camp gear. Get yourself a set of comfy camp chairs and a lightweight fire pit; don't forget the firewood. All of this can easily be stored in or on a trailer. A weird but useful thing we always bring in our trailer camp setup is a 5-gallon bucket like the ones you find at Home Depot or Lowe's. These work great as trash bins, storage, or a quick way to grab water from a stream.
#1 - Wheel Chocks
Not all parking spots are created equal. Make sure you protect your investment by slapping a couple of quality chocks behind your trailer tires before you unload.